First you guys should be told that Martin does not drink alcohol. You also need to know that some of the products you recommend are not readily available in some parts of the world. As for the advice about what the locals use, I often find that "locals" are less bothered by the local pests and/or a tolerance is built up.
I agree that plenty of garlic eaten and rubbed on the back of the hands and neck helps. Especially the latter for midges in Scotland which I have found to be worse than mosquitoes. I find citronella candles pleasent when sitting still in the evening but I have my doubts how effective they are unless you "kipper" yourself in the smoke, then as somebody said, any smoke will do. There are also repellant coils for burning but again - unless the air is almost still and you are enveloped in smoke, not a lot of use.
I also believe that individuals vary in their attraction or repulsion of mosquitoes, probably something to do with the pheromones exuded or just the level of good honest sweat. It also seems to me that mosquitoes vary by region and season.
I suffer particularly badly if bitten but my wife, bitten by the same bug (or its relative) just has a mild, momentary itch.
In France I use a pump spray "Off" (imaginative name, eh?) and it works for me but I guess, Martin, you just will have to experiment a bit or failing that just bask in the love of your family and forget about the bugs!
Roger in France